Home / 12,768.02-19,135.80-5,740.52

Finding the Fourth Proportional to 12,768.02, 19,135.80 and 5,740.52

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Solution

The fourth proportional to 12,768.02, 19,135.80 and 5,740.52 is: 8,603.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.02 : 19,135.80 = 5,740.52 : x
  2. Step 2: Convert to fraction form
    12,768.02/19,135.80 = 5,740.52/x
  3. Step 3: Cross multiply
    12,768.02x = 19,135.80 × 5,740.52
  4. Step 4: Simplify right side
    12,768.02x = 109,849,490.46
  5. Step 5: Solve for x
    x = 109,849,490.46/12,768.02
  6. Step 6: Final answer
    x = 8,603.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.